EP 1984924 B1 20100901 - FUEL ASSEMBLY FOR A PRESSURIZED WATER NUCLEAR REACTOR
Title (en)
FUEL ASSEMBLY FOR A PRESSURIZED WATER NUCLEAR REACTOR
Title (de)
BRENNELEMENT FÜR EINEN DRUCKWASSERKERNREAKTOR
Title (fr)
ELEMENT DE COMBUSTIble POUR REACTEUR NUCLEAIRE A EAU SOUS PRESSION
Publication
Application
Priority
- EP 2007001052 W 20070208
- DE 102006007591 A 20060218
Abstract (en)
[origin: WO2007093313A1] A fuel assembly for a pressurized water nuclear reactor contains a multiplicity of fuel rods which are guided in a plurality of axially spaced spacers (4) which in each case form a square grid, composed of grid webs (14<SUB>1-17</SUB>, 16<SUB>1-17</SUB>), with a multiplicity of cells (6) arranged in rows (10) and columns (8). In each case one control rod guide tube (12) is guided through a number of these cells (6). At least one spacer (4) is designed to be mechanically stronger in a first partial region (18) than in a second partial region (19). In this second partial region (19), the spacer (4) is provided with at least one resisting element (20) which protrudes into a flow sub-channel (17) formed between the fuel rods (2) and increases the flow resistance, the resisting element counteracting a reduction, associated with the mechanically weaker design, in the flow resistance in the second partial region (19) and in this manner effecting a homogenization of the hydraulic behaviour of a spacer which is mechanically inhomogeneous on account of the varying mechanical design.
IPC 8 full level
G21C 3/322 (2006.01)
CPC (source: EP KR US)
G21C 3/30 (2013.01 - KR); G21C 3/322 (2013.01 - EP KR US); G21C 3/352 (2013.01 - EP US); Y02E 30/30 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007093313 A1 20070823; AT E479991 T1 20100915; CN 101385090 A 20090311; CN 101385090 B 20120208; DE 102006007591 A1 20070830; DE 502007004916 D1 20101014; EP 1984924 A1 20081029; EP 1984924 B1 20100901; ES 2348937 T3 20101217; JP 2009526977 A 20090723; JP 5366559 B2 20131211; KR 101001798 B1 20101215; KR 20080094838 A 20081024; US 2009122945 A1 20090514; US 8345815 B2 20130101
DOCDB simple family (application)
EP 2007001052 W 20070208; AT 07711465 T 20070208; CN 200780005801 A 20070208; DE 102006007591 A 20060218; DE 502007004916 T 20070208; EP 07711465 A 20070208; ES 07711465 T 20070208; JP 2008554631 A 20070208; KR 20087022766 A 20070208; US 19276408 A 20080815